A new POWER home page with enhanced responsive GIS-enabled web data services and mapping capabilities replaced the SSE site on June 13, 2018. This current set of SSE web applications and website is no longer accessible. The new POWER will include improved solar and meteorological data with all parameters available on a 0.5-degree global grid. The new home page, featuring the updated parameters, schedule updates and FAQ, can be accessed at POWER. Please direct any questions to POWER Project Team. You will now be redirected to the new POWER site.
Surface meteorology and Solar Energy
Surface meteorology and Solar Energy|
A renewable energy resource web site
- over 200 satellite-derived meteorology and solar energy parameters
- monthly averaged from 22 years of data
- data tables for a particular location
- GIS Web Mapping Application & Services
Please consider joining our SSE mailing list. Since SSE is an active
site, we perform regular updates and revisions. By joining the
mailing list, we will inform you of changes to the web site that might
impact the use of the data.
The mailing list sign up is found at this web site: https://eosweb.larc.nasa.gov/news-lists-registration.
Hint: Under projects select "SSE".
Data tables for a particular location
Tables of all SSE data set parameters for a single site.
Regional data subsets
Subsets of data by region.
Time series plots and data lists of Insolation and Air Temperature
for a single site.
Global data sets
Text files of monthly averaged data for the entire globe. Some annual averages or annual sums are included.
Monthly and annual averages by year and for a series of years.
The Hybrid Optimization Model for Electric Renewables (
) is used for designing standalone electric power systems that employ some
combination of wind turbines, photovoltaic panels, or diesel generators to
- RETScreen® International
A collaboration with the CanmetENERGY research centre in Varennes,
Quebec has produced satellite data output useful to users of the
RETScreen® International Clean Energy Project Analysis
can be obtained free of charge from CanmetENERGY.
NASA, through its' Science Mission Directorate, has long supported
satellite systems and research providing data important to the study
of climate and climate processes. These data include long-term
estimates of meteorological quantities and surface solar energy
fluxes. These satellite and modeled based products have been shown to
be accurate enough to provide reliable solar and meteorological
resource data over regions where surface measurements are sparse or
nonexistent, and offer two unique features - the data is global and,
in general, contiguous in time. These two important characteristics,
however, tend to generate very large data archives which can be
intimidating for commercial users, particularly new users with little
experience or resources to explore these large data sets. Moreover
the data products contained in the various NASA archives are often in
formats that present challenges to new users. To foster the
commercial use of the global solar and meteorological data, NASA
supported, and continues to support, the development of the Surface
meteorology and Solar Energy (SSE) dataset that has been formulated
specifically for photovoltaic and renewable energy system design
needs. Of equal importance is the access to these data; to this end
the SSE parameters are available via user-friendly web-based
applications founded on user needs.
The original SSE data-delivery web site, intended to provide easy
access to parameters needed in the renewable energy industry
(e.g. solar and wind energy), was released to the public in 1997. The
solar and meteorological data contained in this first release was
based on the 1993 NASA/World Climate Research Program Version 1.1
Surface Radiation Budget (SRB) science data and TOVS data from the
International Satellite Cloud Climatology Project (ISCCP). This
initial design approach proved to be of limited value because of the
use of "traditional" scientific terminology that was not compatible
with terminology/parameters used in the energy industry to design
renewable energy power systems. After consultation with industry, SSE
Release 2 was made public in 1999 with parameters specifically
tailored to the needs of the renewable energy community. Subsequent
releases of SSE have continued to build upon an interactive dialog
with potential customers resulting in updated parameters using revised
NASA data as well as inclusion of new parameters as requested by the
The Prediction Of Worldwide Energy Resource (POWER) project was
initiated in 2003 both to improve subsequent releases of SSE, and to
create new datasets applicable to other industries from new satellite
observations and the accompanying results from forecast modeling.
POWER currently encompasses the SSE data set, tailored for the
renewable energy industry, as well as parameters tailored for the
sustainable buildings community, and the bio-energy/agricultural
industries. In general, the underlying data behind the parameters
used by each of these industries is the same - solar radiation and
meteorology, including surface and air temperatures, moisture, and
The purpose of this document is to provide data users of SSE
Release 6.0 insight into the underlying source for the solar and
meteorological data sets, and to provide additional information
relative to the various industry specific parameters, their
limitations, and estimated accuracies based on information available
to NASA at the time of this document. The intent is to provide
information that will enable new and/or long time users to make
decisions concerning the suitability of the SSE data for his or her
project in a particular region of the globe. And finally, it is noted
that SSE Release 6.0 and this document is focused primarily on
parameters of interest to the renewable energy industry, although
there are many parameters common to both the SSE and Sustainable
Buildings components of POWER, and the underlying solar and
meteorological data for all three POWER components is derived from
common data sources.
In general, meteorology and solar radiation for SSE Release 6.0
were obtained from the NASA Science Mission Directorate's satellite
and re-analysis research programs. Parameters based upon the solar
and/or meteorology data were derived and validated based on
recommendations from partners in the energy industry. Release 6.0
extends the temporal coverage of the solar and meteorological data
from 10 years to more than 22 years (e.g. July 1983 through June 2005)
with improved NASA data, and includes new parameters and validation